Personally I think that it is disrespectful to gamble when you are with your spouse especially when they don't really like gambling. Privacy is key when it come to Gambling and it's keep you in your lane so you don't end up getting disrespected by others because whether we like it or not not everyone likes to gamble or even the idea of it alone offends them, it is about studying your partner.
In terms of privacy and how to gamble if it's right or not in front of your spouse, it should be based on the type of person you get married to. There is a difference between gambling at home and when you are on a fun date, cruise, etc., because it's all about fun, and if gambling is also part of the planned fun, then she can be part of it unless she doesn't like it, and then we can choose a different thing to do, not like you are forcing her to it.